Improvement in fasteners for meeting-rails of sashes



J. B. WHITNEY.

improvement in Fasteners for Meeting Rails of Sashes.

No. 124,102. Patented Feb. 27,1872.

Quantum STATES PATENT QFFICE.

JOHN B. WHITNEY, OF NEW YORK, N. Y.

IMPROVEMENT IN FASTENERS FOR MEETING=RAILS OF SASHES.

Specification describing a new and useful Improvement in Sash-Lock,invented by JOHN B. WHITNEY, of the city of New York, in the county andState of New York.

This invention relates to the class of locks used for fastening thesashes of windows together, for preventing the raising of the lower sashor lowering of the upper sash; and consists in a fastening-bar andspring, constructed and arranged to operate in the lock-shell, ashereinafter more fully described.

In the accompanying drawing, Figure 1 represents a top view of the lock,showing the spring and bar in dotted lines. Fig. 2 is a viewof thereverse side of the same. Figs. 3 and 4 are bottom and top views of thelock, modified somewhat in form, but essentially the same as shown inFigs. 1 and 2. Fig. 5 is a cross-section of Fig. 1 on the line as a Fig.6 is a cross-section of Figs. 3and 4. on the lines 3 y and z 2.

Similar letters of reference indicate corresponding parts.

This lock consists of two parts, one of which, A, is attached to the topof the lower sash, and the other part, B, is attached to the other sideof the meeting-rail of the upper sash. C is the fastening-bar, which isjointed by a loose rivet to the part B. D is the spring, also attachedto or confined in the part B, as represented in the drawing, whichforces the fast ening-bar longitudinally, operating against the end ofthe bar, as seen in Figs. 3 and 4, or by means of a recess in. the bar,as seen in Figs. 1 and 2. The rivet-hole in B is elongated, as indicatedin dotted lines, to allow of this move ment of the bar. F is a circularslot in the parts A and B. G is the finger-knob, which is rigidlyattached to the end of the bar 0, with a shoulder, H, which sweeps theoutside or face of the piece A when the sashes are fastened orunfastened. I is the loose rivet, by which the bar is attached to B. Atthe end of the circular slot F in the part A is a small recess, J, intowhich the spring forces the shank of the knob Gr when the sashes arefastened. In Fig. 1 this recess is on the inner side of the circularslot; in Fig. 3 it is on the outer side.

The spring operates in both cases to force the bar longitudinally, sothat the shank of the knob will enter the recess, and thereby lock thebar so that it cannot be moved by a knife-blade or other thin instrumentinserted between the sashes from the outside. When the sashes are thuslocked the bar cannot be moved, except by first pressing the knob eitherinward or outward, thus rendering the fastening secure.

The circular slot F is continued into the parts B, so as to entirelyrelease the knob from the other part when the sashes are unlocked.

I do not limit myself to the precise form or arrangement of any of theparts described, as they may be varied in many ways without departingfrom my invention.

Having thus described my invention, I claim as new and desire to secureby Letters Pat-

